Graeme Churchard's photos with the exif:aperture=ƒ / 2.8

At Mammoth Cave

At Mammoth Cave
The exit doline
Added on January  6, 2011

At Mammoth Cave

At Mammoth Cave
The exit doline
Added on January  6, 2011

At Mammoth Cave

At Mammoth Cave
The exit doline
Added on January  6, 2011

At Mammoth Cave

At Mammoth Cave
The exit
Added on January  6, 2011

At Mammoth Cave

At Mammoth Cave
The exit
Added on January  6, 2011

At Mammoth Cave

At Mammoth Cave
The exit
Added on January  6, 2011

At Mammoth Cave

At Mammoth Cave
Looking back from the exit
Added on January  6, 2011

At Mammoth Cave

At Mammoth Cave
The exit
Added on January  6, 2011

At Mammoth Cave

At Mammoth Cave
Stalagmites
Added on January  6, 2011

At Mammoth Cave

At Mammoth Cave
The exit
Added on January  6, 2011